Global Patent Index - EP 1034209 A1

EP 1034209 A1 2000-09-13 - AQUEOUS SILICON DISPERSIONS, FORMULATIONS IN PARTICULAR OF PAINTS CONTAINING THEM AND ONE METHOD FOR PREPARING THEM

Title (en)

AQUEOUS SILICON DISPERSIONS, FORMULATIONS IN PARTICULAR OF PAINTS CONTAINING THEM AND ONE METHOD FOR PREPARING THEM

Title (de)

WÄSSRIGE SILIKONDISPERSIONEN, DIESE ENTHALTENDE ZUSAMMENSETZUNGEN, INSBESONDERE FARBEN, UND EIN HERSTELLUNGSVERFAHREN

Title (fr)

DISPERSIONS SILICONES AQUEUSES, FORMULATIONS NOTAMMENT DE PEINTURES LES COMPRENANT ET L'UN DE LEUR PROCEDE DE PREPARATION

Publication

EP 1034209 A1 (FR)

Application

EP 98955675 A

Priority

  • FR 9802449 W
  • FR 9714681 A

Abstract (en)

[origin: FR2771098A1] Aqueous silicone dispersion contains polysiloxanes which are already crosslinked or which can be crosslinked by polycondensation. Aqueous silicon dispersion, used in paint formulations, is claimed in which the droplets of the non-aqueous phase are obtained from at least one polysiloxane (POS) resin A which, before emulsifying, has at least 0.05 wt.% condensable hydroxyl substituents and siloxyl groups D, T and, optionally, M and/or Q such that T \/ (M + D + T + Q) = preferably 0.55-0.80. The non-aqueous phase comprises: 100 pts.wt. A substituted by at least one activation function Fa ; 0-20 pts.wt. at least one basic activator B selected from hydrosoluble or hydrodispersible amine or products obtained from silane and/or oligo- or polysiloxane which have hydroxyl group and Fa group; greater than 0 pts.wt. catalyst C selected from organometallic compounds especially dialkyltin dicarboxylates; 0-30 pts.wt. co-crosslinking agent D chosen from products obtained from silane and/or siloxane with, initially, at least two functions of the type -Rd in which Rd = H or 1-20 C aliphatic, D optionally being substituted by at least one Fa group per molecule; and 0-10 pts.wt. surfactant. B is absent from the composition if, and only if, the Fa groups in the other components are present in sufficient quantity. Independent claims are also included for the following: (1) an aqueous formulation containing the dispersion; and (2) preparation of and formulation.

IPC 1-7 (main, further and additional classification)

C08J 3/03; C08L 83/04

IPC 8 full level (invention and additional information)

C08J 3/03 (2006.01); C08L 83/04 (2006.01)

CPC (invention and additional information)

C08J 3/03 (2013.01); C08L 83/04 (2013.01); C08G 77/045 (2013.01); C08G 77/16 (2013.01); C08G 77/80 (2013.01); C08J 2383/04 (2013.01)

Combination set (CPC)

C08L 83/04 + C08L 83/00

Designated contracting state (EPC)

AT BE DE FR GB IT NL

EPO simple patent family

FR 2771098 A1 19990521; FR 2771098 B1 20040813; AT 258948 T 20040215; AU 1243599 A 19990607; DE 69821522 D1 20040311; DE 69821522 T2 20040708; EP 1034209 A1 20000913; EP 1034209 B1 20040204; WO 9925757 A1 19990527

INPADOC legal status


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2013-05-31 [BERE] BE: LAPSED

- Owner name: BLUESTAR SILICONES FRANCE

- Effective date: 20121130

2012-05-31 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: BLUESTAR SILICONES FRANCE, FR

- Free text: FORMER OWNER: RHODIA CHIMIE, COURBEVOIE, FR

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2005-01-26 [26N] NO OPPOSITION FILED

- Effective date: 20041105

2004-07-07 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

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